Liver problems after Famotidine in cats

54 reports to the FDA describe liver problems in cats given Famotidine. That is 13% of all reports for this medicine, compared with 2.8% across reports for all cat medicines, so it is reported unusually often with this medicine.

54Reports
85%Marked serious
11%Recovered
50%Died or euthanised
1 daysTypical onset
SponsoredWorried about your pet? Ask a veterinarian online, 24/7

How soon it started

Same day
13 25%
1–2 days
14 27%
3–7 days
10 20%
1–4 weeks
7 14%
Over a month
7 14%

How the animals did

Recovered
6 11%
Still unwell when reported
11 20%
Died
8 15%
Euthanised
19 35%
Not known
10 19%

Problems reported at the same time

Age of the animals

Under 1 year
1
1–3 years
9
4–7 years
14
8–11 years
14
12+ years
16

About this medicine

Type: medicine.

Questions owners ask

Can Famotidine cause liver problems in cats?
54 reports link the two, but a report alone does not prove the medicine was the cause: other illnesses, other medicines or coincidence can be involved. Your vet can judge it for your animal.
How soon after a dose was it reported?
In half of the reports with dates, it started within 1 day of the first dose.
What should I do?
Don't give another dose until you've spoken to your vet, and keep the packaging so you can tell them the product and dose. Your vet can also report it to the FDA (or you can, through the manufacturer or FDA form 1932a).

Liver problems with similar medicines

All reported side effects of Famotidine in cats · Medicines most reported with liver problems